french president francois hollande is set to visit tomorrow and discuss when he might bring home some of france's 3,500 troops. they've been in mali for four weeks fighting against islamic extremists. in mexico city, rescue workers kept up their search for survivors of an explosion at the offices of mexico's state-run oil company. the blast happened late yesterday, killing at least 33 people and wounding 121 others. rescue workers dug through the rubble of the basement and first three floors of the building where about 250 people worked. the cause of the blast is still unknown and authorities are investigating. the retired cardinal of los angeles, roger mahony, was relieved of all his public duties today by his successor. it came as thdiocese releas thounds pviously secret documents showing he shielded priests who sexually abused children decades ago. the public censure was unparalleled in the american catholic church. mahony will still be able to celebrate mass and can vote for pope until he turns 80, two years from now. u.s. secretary of energy stephen chu announced today he's stepp